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require 'rspec/support/recursive_const_methods'
module RSpec
module Support
RSpec.describe RecursiveConstMethods do
include described_class
module Foo
class Parent
UNDETECTED = 'Not seen when looking up constants in Bar'
end
class Bar < Parent
VAL = 10
end
end
describe '#recursive_const_defined?' do
it 'finds constants' do
const, _ = recursive_const_defined?('::RSpec::Support::Foo::Bar::VAL')
expect(const).to eq(10)
end
it 'returns the fully qualified name of the constant' do
_, name = recursive_const_defined?('::RSpec::Support::Foo::Bar::VAL')
expect(name).to eq('RSpec::Support::Foo::Bar::VAL')
end
it 'does not find constants in ancestors' do
expect(recursive_const_defined?('::RSpec::Support::Foo::Bar::UNDETECTED')).to be_falsy
end
it 'does not blow up on buggy classes that raise weird errors on `to_str`' do
allow(Foo::Bar).to receive(:to_str).and_raise("boom!")
const, _ = recursive_const_defined?('::RSpec::Support::Foo::Bar::VAL')
expect(const).to eq(10)
end
end
describe '#recursive_const_get' do
it 'gets constants' do
expect(recursive_const_get('::RSpec::Support::Foo::Bar::VAL')).to eq(10)
end
it 'does not get constants in ancestors' do
expect do
recursive_const_get('::RSpec::Support::Foo::Bar::UNDETECTED')
end.to raise_error(NameError)
end
end
end
end
end
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